Linear bearing
Yesterday, the reporter contacted Miss He, the sister and the poster of the beaten child, through microblog. Linear bearing, linear bearing "The picture was taken by my father when he went to school to talk to the students and teachers." Miss He said that her brother was punished because he didn't hand in his homework, and he didn't dare to say anything after the accident. About three days after the accident, my father found that he had serious bruises on his buttocks. Then my father went to the school to ask for an explanation. After inquiry, three class cadres beat him.
Family members said that the head teacher was not present at the time of the incident. After the incident, the head teacher asked the beaten boy to talk to him about linear bearings and linear bearings, but the handling of the incident did not follow. "My mother sent my brother to school this morning, and even other The class teacher said that my brother was injured by himself, and the parents made a mountain out of a molehill. " Miss He said that she would only post it on Weibo when she was angry. Linear bearing
Introduction to linear bearing It is a low-cost linear motion system, used for unlimited travel and cylinder The shaft is used together. Since the bearing ball is in point contact with the shaft, the service load is small. The steel ball rotates with less friction resistance, so as to obtain high-precision and stable movement.
Linear bearing Is in line with quenching transmission shaft Used together. A system that moves in an infinite straight line. Due to the point contact between the load ball and the quenched transmission shaft, the allowable load is small, but when moving in a straight line, the friction resistance is small, the precision is high, and the movement is fast.
Linear bearing classification: (1) Standard linear bearing, clearance adjusted linear bearing, open linear bearing, extended linear bearing, universal linear bearing
（2） flange Type A linear bearing can be divided into: round flange type, flange type, elliptical flange type, guide circle flange type, guide method flange type, guide ellipse flange type, extended circle flange type.
Linear bearings are divided according to specifications ：
Linear bearings are divided into two series, namely LM and LME series. The code LM series is used in Asia, Southeast Asia, Japan, South Korea, China, etc. With metric dimensions as the standard, the outer diameter tolerance of the matched linear shaft is generally h7. LME series is mostly used in Europe, the United States, Germany, Italy and other regions. The British dimension is the standard, and there are also metric dimensions. The outer diameter tolerance of the linear shaft is generally g6. The two series of structural features are roughly the same except for different sizes and hole tolerances.
Linear bearing By shape ：
1: Straight cylinder type (cylinder shaped, generally used Circlip Installation, used for installation with small size)
2: Flange type (there is a mounting flange at the end or in the middle, which can be installed with screws. The flange is generally divided into three types: circular, square and trimming)
3: Open type (in the shape of a straight cylinder, with axial slits on the surface, used for occasions requiring clearance adjustment, divided into large opening and small opening)
Linear bearing By performance ：
1: Ordinary type (use for general performance requirements)
2: Super (for occasions requiring long service life and heavy load performance)
Use of linear bearing: Linear bearings are more and more widely used in general or special machinery industries such as electronics, food machinery, packaging machinery, health machinery, printing machinery, textile machinery, machinery, instruments, robots, tool machinery, CNC machine tools, automobiles, etc. Linear bearing
Maintenance of linear bearing Lubrication and friction: Anti corrosion oil shall be injected into the linear bearing. If grease lubrication is used, the anti corrosion oil shall be removed with kerosene or agricultural production system solvent first, and then the grease shall be added after air drying. (It is recommended to use lithium soap grease with viscosity mark of N0.2.) If oil lubrication is used, it is not necessary to remove the anti-corrosion oil. According to the temperature change, lubricating oil with ISO viscosity grade VG15-100 can be selected. Shaft lubrication can be supplied from the oil supply pipe or from the oil hole on the outer bearing seat. As the sealing ring will scrape off the lubricating oil, oil lubrication is not applicable to the linear bearing with sealing ring without hole, linear bearing
Linear bearing
Linear bearing
